Pig iron is obtained from iron ore, in a blast furnace by the process of
A) oxidation
B) desulphurisation
C) reduction
D) carbonation
Correct Answer:
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Q4: Pattern draft for external surfaces is (in
Q5: Sand is broadly specified by
A)grain size
B)colour
C)moisture content
D)all
Q6: Chaplets are made of
A)wood
B)metal
C)organic matter
D)core sand
Q7: Clay content of green sand is usually
A)5
Q8: The sprue pin/sprue hole used for sand
Q10: Which of the following statement about gates
Q11: In case of arc furnaces electric supply
Q12: The sand used for filling the bulk
Q13: In fluminium foundry, for removing dissolved hydrogen
Q14: Choose the correct statement in respect of
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